Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-08-04 09:03:28 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

clean up some debugging spew. take dimensions into account when scaling points used for collision hull creation

Browse source
This commit is contained in:
Seth Alves 2015-03-23 16:54:36 -07:00
parent f31ac8b968
commit c8ad82917e
5 changed files with 64 additions and 18 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
libraries/entities-renderer/src/RenderableModelEntityItem.cpp
View file

@ -266,6 +266,14 @@ bool RenderableModelEntityItem::findDetailedRayIntersection(const glm::vec3& ori
return _model->findRayIntersectionAgainstSubMeshes(origin, direction, distance, face, extraInfo, precisionPicking);
}
void RenderableModelEntityItem::updateDimensions(const glm::vec3& value) {
if (glm::distance(_dimensions, value) > MIN_DIMENSIONS_DELTA) {
_dimensions = value;
_dirtyFlags |= (EntityItem::DIRTY_SHAPE | EntityItem::DIRTY_MASS);
}
_model->setScaleToFit(true, _dimensions);
}
bool RenderableModelEntityItem::isReadyToComputeShape() {
if (!_model) {
@ -294,6 +302,7 @@ void RenderableModelEntityItem::computeShapeInfo(ShapeInfo& info) {
const QSharedPointer<NetworkGeometry> collisionNetworkGeometry = _model->getCollisionGeometry();
const FBXGeometry& fbxGeometry = collisionNetworkGeometry->getFBXGeometry();
AABox aaBox;
_points.clear();
unsigned int i = 0;
foreach (const FBXMesh& mesh, fbxGeometry.meshes) {
@ -301,15 +310,29 @@ void RenderableModelEntityItem::computeShapeInfo(ShapeInfo& info) {
foreach (const FBXMeshPart &meshPart, mesh.parts) {
QVector<glm::vec3> pointsInPart;
unsigned int triangleCount = meshPart.triangleIndices.size() / 3;
for (unsigned int i = 0; i < triangleCount; i++) {
unsigned int p0Index = meshPart.triangleIndices[i*3];
unsigned int p1Index = meshPart.triangleIndices[i*3+1];
unsigned int p2Index = meshPart.triangleIndices[i*3+2];
assert((unsigned int)meshPart.triangleIndices.size() == triangleCount*3);
for (unsigned int j = 0; j < triangleCount; j++) {
unsigned int p0Index = meshPart.triangleIndices[j*3];
unsigned int p1Index = meshPart.triangleIndices[j*3+1];
unsigned int p2Index = meshPart.triangleIndices[j*3+2];
assert(p0Index < (unsigned int)mesh.vertices.size());
assert(p1Index < (unsigned int)mesh.vertices.size());
assert(p2Index < (unsigned int)mesh.vertices.size());
// glm::vec3 p0 = mesh.vertices[p0Index] * scale[0];
// glm::vec3 p1 = mesh.vertices[p1Index] * scale[1];
// glm::vec3 p2 = mesh.vertices[p2Index] * scale[2];
glm::vec3 p0 = mesh.vertices[p0Index];
glm::vec3 p1 = mesh.vertices[p1Index];
glm::vec3 p2 = mesh.vertices[p2Index];
aaBox += p0;
aaBox += p1;
aaBox += p2;
if (!pointsInPart.contains(p0)) {
pointsInPart << p0;
}
@ -327,7 +350,21 @@ void RenderableModelEntityItem::computeShapeInfo(ShapeInfo& info) {
}
}
info.setParams(getShapeType(), 0.5f * getDimensions(), _collisionModelURL);
// make sure we aren't about to divide by zero
glm::vec3 aaBoxDim = aaBox.getDimensions();
aaBoxDim = glm::clamp(aaBoxDim, glm::vec3(FLT_EPSILON), aaBoxDim);
// scale = dimensions / aabox
glm::vec3 scale = _dimensions / aaBoxDim;
// multiply each point by scale before handing the point-set off to the physics engine
for (int i = 0; i < _points.size(); i++) {
for (int j = 0; j < _points[i].size(); j++) {
_points[i][j] *= scale;
}
}
info.setParams(getShapeType(), _dimensions, _collisionModelURL);
info.setConvexHulls(_points);
}
}

2
libraries/entities-renderer/src/RenderableModelEntityItem.h
View file

@ -52,6 +52,8 @@ public:
bool needsToCallUpdate() const;
virtual void updateDimensions(const glm::vec3& value);
bool isReadyToComputeShape();
void computeShapeInfo(ShapeInfo& info);
ShapeType getShapeType() const;

11
libraries/entities/src/EntityItem.h
View file

@ -40,6 +40,15 @@ class EntityTreeElementExtraEncodeData;
#define debugTreeVector(V) V << "[" << V << " in meters ]"
extern const float MIN_POSITION_DELTA;
extern const float MIN_DIMENSIONS_DELTA;
extern const float MIN_ALIGNMENT_DOT;
extern const float MIN_VELOCITY_DELTA;
extern const float MIN_DAMPING_DELTA;
extern const float MIN_GRAVITY_DELTA;
extern const float MIN_SPIN_DELTA;
/// EntityItem class this is the base class for all entity types. It handles the basic properties and functionality available
/// to all other entity types. In particular: postion, size, rotation, age, lifetime, velocity, gravity. You can not instantiate
/// one directly, instead you must only construct one of it's derived classes with additional features.
@ -270,7 +279,7 @@ public:
void updatePositionInDomainUnits(const glm::vec3& value);
void updatePosition(const glm::vec3& value);
void updateDimensionsInDomainUnits(const glm::vec3& value);
void updateDimensions(const glm::vec3& value);
virtual void updateDimensions(const glm::vec3& value);
void updateRotation(const glm::quat& rotation);
void updateDensity(float value);
void updateMass(float value);

15
libraries/physics/src/ShapeInfoUtil.cpp
View file

@ -77,10 +77,12 @@ void ShapeInfoUtil::collectInfoFromShape(const btCollisionShape* shape, ShapeInf
const int numPoints = convexHullShape->getNumPoints();
const btVector3* btPoints = convexHullShape->getUnscaledPoints();
QVector<QVector<glm::vec3>> points;
QVector<glm::vec3> childPoints;
for (int i = 0; i < numPoints; i++) {
glm::vec3 point(btPoints->getX(), btPoints->getY(), btPoints->getZ());
points[0] << point;
childPoints << point;
}
points << childPoints;
info.setConvexHulls(points);
}
break;
@ -116,9 +118,6 @@ void ShapeInfoUtil::collectInfoFromShape(const btCollisionShape* shape, ShapeInf
btCollisionShape* ShapeInfoUtil::createShapeFromInfo(const ShapeInfo& info) {
btCollisionShape* shape = NULL;
qDebug() << "\n\nHERE" << info.getType();
switch(info.getType()) {
case SHAPE_TYPE_BOX: {
shape = new btBoxShape(glmToBullet(info.getHalfExtents()));
@ -149,13 +148,8 @@ btCollisionShape* ShapeInfoUtil::createShapeFromInfo(const ShapeInfo& info) {
shape = new btCompoundShape();
const QVector<QVector<glm::vec3>>& points = info.getPoints();
qDebug() << "\n\nSHAPE_TYPE_COMPOUND" << info.getPoints().size() << "hulls.";
foreach (QVector<glm::vec3> hullPoints, info.getPoints()) {
auto hull = new btConvexHullShape();
qDebug() << " SHAPE_TYPE_COMPOUND" << hullPoints.size() << "points in hull.";
foreach (glm::vec3 point, hullPoints) {
btVector3 btPoint(point[0], point[1], point[2]);
hull->addPoint(btPoint);
@ -165,9 +159,6 @@ btCollisionShape* ShapeInfoUtil::createShapeFromInfo(const ShapeInfo& info) {
static_cast<btCompoundShape*>(shape)->addChildShape (trans, hull);
}
}
qDebug() << "DONE, getNumChildShapes =" << static_cast<btCompoundShape*>(shape)->getNumChildShapes();
break;
}
return shape;

7
libraries/shared/src/ShapeInfo.cpp
View file

@ -38,6 +38,8 @@ void ShapeInfo::setParams(ShapeType type, const glm::vec3& halfExtents, QString
}
case SHAPE_TYPE_CONVEX_HULL:
_url = QUrl(url);
// halfExtents aren't used by convex-hull or compound convex-hull except as part of
// the generation of the key for the ShapeManager.
_halfExtents = halfExtents;
break;
case SHAPE_TYPE_COMPOUND:
@ -51,18 +53,21 @@ void ShapeInfo::setParams(ShapeType type, const glm::vec3& halfExtents, QString
}
void ShapeInfo::setBox(const glm::vec3& halfExtents) {
_url = "";
_type = SHAPE_TYPE_BOX;
_halfExtents = halfExtents;
_doubleHashKey.clear();
}
void ShapeInfo::setSphere(float radius) {
_url = "";
_type = SHAPE_TYPE_SPHERE;
_halfExtents = glm::vec3(radius, radius, radius);
_doubleHashKey.clear();
}
void ShapeInfo::setEllipsoid(const glm::vec3& halfExtents) {
_url = "";
_type = SHAPE_TYPE_ELLIPSOID;
_halfExtents = halfExtents;
_doubleHashKey.clear();
@ -75,9 +80,11 @@ void ShapeInfo::setConvexHulls(const QVector<QVector<glm::vec3>>& points) {
_type = SHAPE_TYPE_COMPOUND;
}
_points = points;
_doubleHashKey.clear();
}
void ShapeInfo::setCapsuleY(float radius, float halfHeight) {
_url = "";
_type = SHAPE_TYPE_CAPSULE_Y;
_halfExtents = glm::vec3(radius, halfHeight, radius);
_doubleHashKey.clear();